RU2014111827A - VIDEO DECODING DEVICE - Google Patents

VIDEO DECODING DEVICE Download PDF

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RU2014111827A
RU2014111827A RU2014111827/07A RU2014111827A RU2014111827A RU 2014111827 A RU2014111827 A RU 2014111827A RU 2014111827/07 A RU2014111827/07 A RU 2014111827/07A RU 2014111827 A RU2014111827 A RU 2014111827A RU 2014111827 A RU2014111827 A RU 2014111827A
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intra
prediction mode
mode
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block
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RU2601445C2 (en
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Соо Ми ОХ
Моонок ЯНГ
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Инфобридж Пте. Лтд.
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    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
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    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
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    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
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    • H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
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    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
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    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks

Abstract

1. Устройство декодирования видеоданных, содержащее:модуль декодирования режима предсказания, сконфигурированный с возможностью получения режима внутреннего предсказания яркости и режима внутреннего предсказания цветности;модуль определения размера предсказания, сконфигурированный с возможностью определения размера элемента преобразования яркости и размера элемента преобразования цветности;модуль генерирования опорных пикселей, сконфигурированный с возможностью генерирования опорных пикселей, если, по меньшей мере, один опорный пиксель недоступен;модуль фильтрации опорных пикселей, сконфигурированный с возможностью адаптивной фильтрации опорных пикселей текущего блока яркости на основе режима внутреннего предсказания яркости и размера элемента преобразования яркости, и невыполнения фильтрации опорных пикселей текущего блока цветности;модуль генерирования блоков предсказания, сконфигурированный с возможностью генерирования блоков предсказания текущего блока яркости и текущего блока цветности; имодуль генерирования остаточных блоков, сконфигурированный с возможностью генерирования остаточного блока яркости и остаточного блока цветности,при этом режим внутреннего предсказания яркости получается с использованием группы MPM, включающей в себя три режимавнутреннего предсказания, указателя группы режимов и индекса режима предсказания яркости.2. Устройство по п. 1, в котором, если режим внутреннего предсказания цветности является DM режимом, то режим внутреннего предсказания цветности устанавливается равным режиму внутреннего предсказания яркости.3. Устройство по п. 1, в котором, когда до�A video decoding apparatus, comprising: a prediction mode decoding module configured to obtain an internal luminance prediction mode and an intra color prediction mode; a prediction size determining module configured to determine a luminance conversion element size and a color conversion element size; reference pixel generating module configured to generate reference pixels if at least one reference th pixel is unavailable; reference pixel filtering module configured to adaptively filter the reference pixels of the current luminance block based on the intra brightness prediction mode and the size of the luminance conversion element and not filtering the reference pixels of the current chroma block; prediction block generation module configured to generate blocks predictions of the current luma block and the current chroma block; a residual block generation module configured to generate a residual luminance block and a residual chroma block, wherein the intra brightness prediction mode is obtained using the MPM group including three intra prediction modes, a mode group index and a brightness prediction mode index. 2. The apparatus of claim 1, wherein if the intra color prediction mode is a DM mode, then the intra color prediction mode is set equal to the intra brightness prediction mode. The device according to claim 1, wherein, when

Claims (9)

1. Устройство декодирования видеоданных, содержащее:1. A video decoding apparatus, comprising: модуль декодирования режима предсказания, сконфигурированный с возможностью получения режима внутреннего предсказания яркости и режима внутреннего предсказания цветности;a prediction mode decoding unit configured to obtain an intra brightness prediction mode and an intra color prediction mode; модуль определения размера предсказания, сконфигурированный с возможностью определения размера элемента преобразования яркости и размера элемента преобразования цветности;a prediction size determination unit configured to determine a size of a luminance conversion element and a size of a color conversion element; модуль генерирования опорных пикселей, сконфигурированный с возможностью генерирования опорных пикселей, если, по меньшей мере, один опорный пиксель недоступен;a reference pixel generation module configured to generate reference pixels if at least one reference pixel is unavailable; модуль фильтрации опорных пикселей, сконфигурированный с возможностью адаптивной фильтрации опорных пикселей текущего блока яркости на основе режима внутреннего предсказания яркости и размера элемента преобразования яркости, и невыполнения фильтрации опорных пикселей текущего блока цветности;a reference pixel filtering module configured to adaptively filter the reference pixels of the current luminance block based on the intra brightness prediction mode and the size of the luminance conversion element and not to filter the reference pixels of the current chroma block; модуль генерирования блоков предсказания, сконфигурированный с возможностью генерирования блоков предсказания текущего блока яркости и текущего блока цветности; иa prediction block generation module configured to generate prediction blocks of a current luma block and a current chroma block; and модуль генерирования остаточных блоков, сконфигурированный с возможностью генерирования остаточного блока яркости и остаточного блока цветности,a residual block generating module configured to generate a residual luminance block and a residual chroma block, при этом режим внутреннего предсказания яркости получается с использованием группы MPM, включающей в себя три режимаwherein the intra brightness prediction mode is obtained using the MPM group including three modes внутреннего предсказания, указателя группы режимов и индекса режима предсказания яркости.intra prediction, a pointer to a group of modes, and an index of a brightness prediction mode index. 2. Устройство по п. 1, в котором, если режим внутреннего предсказания цветности является DM режимом, то режим внутреннего предсказания цветности устанавливается равным режиму внутреннего предсказания яркости.2. The device according to claim 1, wherein if the intra color prediction mode is a DM mode, then the intra color prediction mode is set equal to the intra brightness prediction mode. 3. Устройство по п. 1, в котором, когда доступен только один из режима внутреннего предсказания левого элемента и режима внутреннего предсказания верхнего элемента текущего элемента предсказания яркости, группа MPM включает в себя доступный режим внутреннего предсказания и два дополнительных режима внутреннего предсказания, определенных посредством доступного режима внутреннего предсказания.3. The device according to claim 1, in which, when only one of the intra-prediction mode of the left element and the intra-prediction mode of the upper element of the current brightness prediction element is available, the MPM group includes an available intra-prediction mode and two additional intra-prediction modes defined by available intra prediction mode. 4. Устройство по п. 3, в котором, когда доступный режим внутреннего предсказания является ненаправленным режимом, другой ненаправленным режим и вертикальный режим устанавливаются в качестве двух дополнительных режимов внутреннего предсказания.4. The apparatus of claim 3, wherein when the available intra prediction mode is an omnidirectional mode, another non-directional mode and a vertical mode are set as two additional intra prediction modes. 5. Устройство по п. 1, в котором, если текущий элемент предсказания цветности больше элемента преобразования цветности, то режим внутреннего предсказания цветности используется для генерирования блоков предсказания цветности других блоков внутри элемента предсказания цветности.5. The device according to claim 1, wherein if the current chroma prediction element is larger than the chroma conversion element, then the intra chroma prediction mode is used to generate chroma prediction blocks of other blocks within the chroma prediction element. 6. Устройство по п. 1, в котором, когда указатель группы режимов не указывает группу MPM, режим внутреннего предсказания яркости определяется посредством сравнения индекса режима предсказания яркости последовательно с тремя режимами внутреннего предсказания группы MPM.6. The device according to claim 1, wherein when the mode group indicator does not indicate an MPM group, the intra brightness prediction mode is determined by comparing the index of the brightness prediction mode in series with the three intra prediction modes of the MPM group. 7. Устройство по п. 6, в котором наименьший номер режима из упомянутых трех режимов внутреннего предсказания сравнивается первым, а наибольший номер режима из упомянутых трех режимов внутреннего предсказания сравнивается последним.7. The device according to claim 6, in which the smallest mode number of the three intra prediction modes is compared first, and the largest mode number of the three intra prediction modes is compared last. 8. Устройство по п. 7, в котором, если индекс режима предсказания яркости больше или равен режиму внутреннего предсказания группы MPM, то индекс режима предсказания яркости увеличивается на один.8. The device according to claim 7, in which, if the index of the brightness prediction mode is greater than or equal to the intra prediction mode of the MPM group, then the index of the brightness prediction mode is increased by one. 9. Устройство по п. 3, в котором доступный режим внутреннего предсказания является направленным режимом, DC режим и планарный режим устанавливаются в качестве двух дополнительных режимов внутреннего предсказания. 9. The device of claim 3, wherein the available intra prediction mode is a directional mode, the DC mode and the planar mode are set as two additional intra prediction modes.
RU2014111827/07A 2011-11-04 2012-11-02 Apparatus for decoding video data RU2601445C2 (en)

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RU2016139140A Division RU2761086C2 (en) 2011-11-04 2012-11-02 Video data decoding device
RU2016139142A Division RU2711182C2 (en) 2011-11-04 2016-10-05 Video data decoding device
RU2016139141A Division RU2711176C2 (en) 2011-11-04 2016-10-05 Video data decoding device

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